Lining-up device for marine engines



Sept. 21 ,1926. 1,600,610

1 Q H. M. WESCQTT LININ G-UP DEVICE FOR MARINE ENGINES Filed Dec. 8, 1925 2.Sheets-Sheet 1 1) r A l7 Inventor 5.6- 7 #2) 11 Wacofi' I 7/ If q z I. L. l L Byflzmaali l l Attorney Sept. 21 1926.

H. M. WESCOTT LINING-UP DEVICE FOR MARINE ENGINES Filed Dec. 28, 1925 2 Sheets-Sheet 2 Patented Sept. 21, 1926.

UNITED STATES- HARVEY M. wns'oo'r'r, or BROOKLYN, VNEW YORK.

LINING-Ul DEVICE FOR MARINE ENGINES.

Application filed December 28,1925. Serial No. 78,038.-

Thepresent invention relates to a device for assisting in the lining-up of marine engines and more particularly to the lining-up of the cranks of .the crank shaft with the axes of the cylinders.

The important ob 'ect of the invention is to provide a device of this nature which will indicate the relative position of the crank shaft in relation to the cylinders.

Another important object of'the invention is to provide a device of this nature which may be easily and readily appliedto an ordinary marine engine and which will prove thoroughly accurate in use.

A further important object of the invention is the provision of a device of this nature which is simplein its construction, compact, convenient to use, and otherwise well adapted to the purpose for which it is designed. 7 j With the above and numerous other objects in view as will appear as the description proceeds, the invention resides in certain novel features of construction, and in the combination and arrangement of parts as will be hereinafter more fully described and claimed.

In the drawing Figure 1 is a side elevation'of the device embodying the features of my invention, showing the same in use,

Fig. 2 is a top plan view of the plumb bob block,

Fig. 3 is an end elevation thereof,

Fig. 4 is a top plan view of the cylinder engaging member,

Fig. 5 is an enlarged detail elevationof I one of the arms thereof, and

Fig. 6 is an enlarged detail view of the central portionof the crank engaging rule.

Referring to the drawing in detail, it will be seen that I have diagrammatically illustrated a portion of an ordinary marine engine to bring out clearly the operation of my improved device. Those portions of the engine which I have shown include the usual crank shaft 5 having the crank including throw arms 6, standards 7 cylinder 8 which is provided with the bottom opening 9 through which the piston rod, not shown, extends for operation of the cross head in the usual well known manner.

To use my device, the piston rod, cross head, and connecting rod which I have not illustrated, are removed.

A leveling frame indicated generally by the letter A is disposed on the upper end of the cylinder 8. This frame A is illustrated to advantage in Figs. 4 and5 wherein it will be seen that 10 designatesa block having right a-ngularly disposed spirit levels 11 incorporated therein. Four arms 12 extend from the blocklO being detachably engaged therewith by screws 13 or any other suitable manner.

A screw 14; is journaled for rotation in each arm 12 and has a crank 15 on the outer extremity thereof. A slide 16 is mounted on each arm 12 and the screw 14 is threaded therethrough so that the slide may be moved longitudinally of the arms 12. On each slide 16 there'is provided a projection 17 The arms 12 are rested on the upper edge of the cylinder 8 as is indicated in Fig. 1, so that the block 10 is vertically alined with the center of the opening 9. This is accomplished by proper manipulation of the cranks 15 for moving the slides 16 to engage the projections 17 with the interior of the cylinder. 1

A tubular member 18 is mounted in the block 10 and has a restricted neck 19 at its upper end into which is threaded a set screw 20. After the frame A has been properly mounted'on the cylinder, the engine base may be adjusted to level up the cylinder if the same is out of plumb as may beascertained from the rectangularly disposed spirit levels 11. I

The numeral 21 denotes a rule which is adapted tobe disposed so as to span the ends of the throw arms 6 of the crank of the crank shaft5. Abutting'slide blocks 22 may be mounted on the'rule 21 for properly centering a gauge plate at the center of the rule. The gauge plate 23 is constructed with a spirit level 24 incorporated therein and indicia markings 25 are provided on one edge of the gauge plate and'the center of these markings 25 should be located, centrally of the two throw arms 6, although this is not necessary.

The plumb bob is indicated generally by the letter B and is illustrated to particular advantage in Figs. 2 and 3. The numeral 26 denotes the block of the plumb bob which is preferably of a rectangular formation and provided with a central opening 27 and an off center opening 28. A reel 29 is journaled between th upper ends of standards 30 which are mounted on the block 26 and has a ratchet wheel 31 on one end thereof with.

9 engagement therewith by the set screw 20.

The reel 29 may be rotated for lengthening or shortening the reel lineas may be desired.

The plumb bob would be disposed below the ends of the throw arms6. A plurality of feet 34 depend from the block 26 so that said block 26 may be rested on some suitable removable support such as a box or the like, while the line 33 is being engaged in the tubular member 18. I also provide on the block 26 a pair of rectang'ularly disposed spirit levels 35.

After the cylinders 8 have been properly leveled, the alinement of the cranks of the crank shaft with thecylinders may be readily ascertained since the plumb bob B will hold the line 33 vertical and if the throw arms 6 are not properly alined in respect to the cylinder 8 this factmay be readily ascertained by the line 33 and the marl-tings 25. The markings 25 will also be useful in ascertaining how far 'the crank shaft is off and will thereby allow said shaft to be more accurately lined up.

It is thought that the construction, opera tion, and advantages of my invention will now be clearly understood by those skilled in this art without a more detailed, description thereof. It is apparent, however, that the present embodiment of the invention has been disclosed merely by Way of example since in actual practice it attains the. features of advantage enumerated as desirable in the statement of the invention and the above description. However, changes in the details of construction, and in the combination and arrangement of parts may be resorted to within the spirit and scope of the invention as hereinafter claimed.

Having thus described my invention, what I claim as new is 1. A device of the class described including a cylinder engaging frame having levels incorporated therein, a plumb line having one end attached to the frame, a plumb bob, said plumb line being threaded thru said plumb bob, and a reel rotatably mounted on the plumb hob and having the plumb line associated therewith.

2. A- 'device ofthe class described including a cylinder engaging frame having levels incorporated therein, tr -plumb line having one end attached to the frame, a plumb bob,

said plumb line being threaded thru saidplumb bod, a -reel rotatably mounted on the plumb bob and having-the plumb line associated therewith, said plumb bob having incorporated therein level indicating means.

3. A device of the class fde'scribed including a cylinder engaging frame having levels incorporated 'Cll819 l1,'& plumb line having one end attached to t is frame, a plumb bob,

said plumb line being threaded thru said the block, a set screw threaded through the tubular 1nember,-a plurality of arms extending from the block, screws journaled in the armslongitudinally thereof, slides on the arms through which the screws are threaded, a plumb line threaded through the tubular member and engaged therein by the set screw, and a-plumb bob on said plumb line.

5. A plumb bob of the class described in-. cluding a block havinga centrally located opening and an off center opening, a plumb line threaded through :said openings, standards mounted on the block, a reel journaled between the standards, a ratchet wheel on the reel, and/a dog pivoted on one of the standards and engageable with the ratchet wheel. I,

In testimony whereof I aflix my signature.

HARVEY M. wnscorr. 

